-99.59% is the change from 980 to 4
Calculation steps:
[( 4 - 980 ) ÷ 980] x 100 = -99.59%
Formula
Percentage change = [(4 - 980) / 980] x 100
Subtract the new number by the original number
4 - 980 = -976
-976 ÷ 980 = -0.9959183673469387
-0.9959183673469387 x 100 = -99.59%